Indigo Airlines — Job genuine or fake?

I received an email regarding airport jobs on my mail id.in that email all the description as well as contact person's phn no. Was given. I called on that number. There was one madam named anamika who picked up the phone and explained me about recruitment process. He gave me the mail id of indigo hr and told me to submit my documents on that id. Next day i submitted it, after few hours i received one confirmation mail by indigo stating that your documents are selected for interview. You have to pay 2100 for the reference id and interview question-answer sheet. I deposited money in the a/c which was given to me by anamika.in the evening one sir from indigo took my telephonic interview.
Next day i received call from verification dept of indigo, guy named shweta told me to deposit 7900 (Refundable) for the ctc certifictr. I again deposit that money in the same a/c which was given by anamika.in the evening i received offer letter from indigo. Next day shweta madam again called me and told to deposit again 10000 rs (Refundable in the salary of 3rd month) for the job traning
As a security deposit... I already deposited 10, 000 rs (2500+7500).. Should i deposit again 10, 000 or is it fake?? Plz help me..